<html>
<head>
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<tt><font size="+1">This is a link to John Wiles article on NEC2014
for this topic. To my knowledge, no one has adopted NEC2017, so
it would seem that this article is appropriate for the most
recent NEC published. As noted AHJs can allow exceptions, and it
is great that new language is now approved for NEC2017, but that
wasn't the case when John Wiles published his article.<br>
<br>
<a class="moz-txt-link-freetext" href="http://iaeimagazine.org/magazine/2014/07/10/center-fed-load-centers-and-panelboards/">http://iaeimagazine.org/magazine/2014/07/10/center-fed-load-centers-and-panelboards/</a><br>
<br>
There is also pdf version here.<br>
<br>
<a class="moz-txt-link-freetext" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0ahUKEwjl8OmH26TLAhWI7D4KHcbJAHQQFggjMAE&url=http%3A%2F%2Fdept-wp.nmsu.edu%2Fswtdi%2Ffiles%2F2015%2F11%2Fiaei_jul-aug_2014.pdf&usg=AFQjCNERV2M21V1nvLlvLVSLZUMoj36J_A&sig2=g145SdF1HzNuHc0P6NXshw&bvm=bv.115339255,d.cWw&cad=rja">https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0ahUKEwjl8OmH26TLAhWI7D4KHcbJAHQQFggjMAE&url=http%3A%2F%2Fdept-wp.nmsu.edu%2Fswtdi%2Ffiles%2F2015%2F11%2Fiaei_jul-aug_2014.pdf&usg=AFQjCNERV2M21V1nvLlvLVSLZUMoj36J_A&sig2=g145SdF1HzNuHc0P6NXshw&bvm=bv.115339255,d.cWw&cad=rja</a><br>
<br>
<br>
Chris<br>
<br>
<br>
</font></tt><br>
<div class="moz-cite-prefix">On 3/2/2016 2:24 PM,
<a class="moz-txt-link-abbreviated" href="mailto:billbrooks7@sbcglobal.net">billbrooks7@sbcglobal.net</a> wrote:<br>
</div>
<blockquote cite="mid:037001d174b9$24edefc0$6ec9cf40$@sbcglobal.net"
type="cite">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="Generator" content="Microsoft Word 15 (filtered
medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]-->
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle19
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle20
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
<div class="WordSection1">
<p class="MsoNormal">All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here is the new language that has been
approved for the 2017 NEC (more authoritative than JW).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">705.12(B)(3)(d)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-family:"Times New Roman",serif">(d) A
connection at either end, but not both ends, of a center-fed
panelboard in dwellings shall be permitted where the sum of
125 percent of the power source(s) output circuit current
and the rating of the overcurrent device protecting the
busbar does not exceed 120 percent of the current rating of
the busbar.<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This clarifies that it was never the intent
of the NEC to limit the 120% rule to the opposite end of the
busbar for dwellings (it was allowed from 2005 back to 1987).
I was able to convince the panel that centerfed panels did not
need the opposite end stipulation. Several large jurisdictions
in California or considering making an official policy
accepting the language of the 2017 NEC on this item. Please
share this with your own jurisdiction.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Bill.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> RE-wrenches
[<a class="moz-txt-link-freetext" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On
Behalf Of </b>Glenn Burt<br>
<b>Sent:</b> Wednesday, March 02, 2016 10:54 AM<br>
<b>To:</b> RE-wrenches
<a class="moz-txt-link-rfc2396E" href="mailto:re-wrenches@lists.re-wrenches.org"><re-wrenches@lists.re-wrenches.org></a><br>
<b>Subject:</b> Re: [RE-wrenches] NEC 705.12 Point of
Connection - 120% rule for center-fed panelboards<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">I believe that John Wiles has stated
this in a couple of places in print, therefore you may
have a tough time justifying a way around the rule to an
AHJ.<br>
<br>
Supply side connections are very popular in this
situation.<o:p></o:p></p>
</div>
</div>
<div>
<div class="MsoNormal" style="text-align:center"
align="center"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif">
<hr align="center" size="2" width="100%"></span></div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><b>From: </b><a
moz-do-not-send="true" href="mailto:august@luminalt.com">August
Goers</a><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif"><br>
</span><b>Sent: </b>3/2/2016 11:32<span
style="font-size:12.0pt;font-family:"Times New
Roman",serif"><br>
</span><b>To: </b><a moz-do-not-send="true"
href="mailto:re-wrenches@lists.re-wrenches.org">RE-wrenches</a><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif"><br>
</span><b>Subject: </b>[RE-wrenches] NEC 705.12 Point of
Connection - 120% rule for center-fed panelboards<span
style="font-size:12.0pt;font-family:"Times New
Roman",serif"><o:p></o:p></span></p>
</div>
<p class="MsoNormal">All –<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">We are seeing more AHJs not allowing us to
use the NEC 7015.12(D)(2)(3)(b) 120% rule on center-fed
panelboards. For example, if we have a 100 A meter/main combo
with a center fed 100 A breaker we cannot apply the 120% rule
at all and need to do a panel swap. What are other wrenches
doing in this case?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Best,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">August<o:p></o:p></p>
<p class="MsoNormal">Luminalt<o:p></o:p></p>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
List sponsored by Redwood Alliance
List Address: <a class="moz-txt-link-abbreviated" href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a>
Change listserver email address & settings:
<a class="moz-txt-link-freetext" href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a>
List-Archive: <a class="moz-txt-link-freetext" href="http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html">http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html</a>
List rules & etiquette:
<a class="moz-txt-link-abbreviated" href="http://www.re-wrenches.org/etiquette.htm">www.re-wrenches.org/etiquette.htm</a>
Check out or update participant bios:
<a class="moz-txt-link-abbreviated" href="http://www.members.re-wrenches.org">www.members.re-wrenches.org</a>
</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Christopher Warfel, President
ENTECH Engineering, Inc.
PO Box 871, Block Island, RI 02807
401-466-8978</pre>
</body>
</html>